Table 7 Evapotranspiration (ET) and water use efficiency (WUE) of transplanted cotton after winter wheat harvest (TCWWH) in different irrigation methods.

From: Variations in growth, water consumption and economic benefit of transplanted cotton after winter wheat harvest subjected to different irrigation methods

Year

Treatment

P (mm)

I (mm)

DW (mm)

ΔS (mm)

ET (mm)

WUE (kg m−3)

2013

BI

318.3

180.5

−2.0

−21.4

475.4 ± 20.0 a

0.55 ± 0.04 c

SDI

318.3

81.3

0.0

−10.9

388.7 ± 3.2 c

0.90 ± 0.03 a

MHI

318.3

120.9

0.0

−11.6

427.7 ± 3.6 b

0.77 ± 0.01 b

2014

BI

447.7

180.5

−59.3

−90.1

478.9 ± 5.1 a

0.45 ± 0.05 b

SDI

447.7

80.5

−40.2

−108.0

379.6 ± 10.3 c

0.71 ± 0.03 a

MHI

447.7

120.3

−50.9

−90.9

426.2 ± 1.9 b

0.54 ± 0.08 b

2015

BI

208.8

270.9

−22.8

0.3

457.3 ± 1.1 a

0.61 ± 0.03 c

SDI

208.8

101.1

−9.1

77.0

377.8 ± 1.3 c

1.00 ± 0.03 a

MHI

208.8

180.6

−2.6

38.6

425.5 ± 7.0 b

0.83 ± 0.07 b

  1. Negative DW values indicated the soil water seeped from the 100 cm soil layer into the deeper soil. Negative ΔS values indicated the SWC in the 100 cm soil layer increased compared to initial measurements, while positive ΔS values indicated the SWC decreased.